ed the various corps of his army at all the points protecting the approach to Washington, from Centerville up to Leesburg.
From this vantage ground the rebel general in vain attempted to draw him. In the mean time, by the vigorous operation of Pleasonton's cavalry, the cavalry of Stuart, though greatly superior in numbers, was so crippled as to be disabled from performing the part assigned it in the campaign.
In this manner General Lee's first object, namely, the defeat of Hooker's army on thethe river.
Stuart, who had been sent with his cavalry to the east of the Blue Ridge to guard the passes of the mountains, to mask the movements of Lee, and to harass the Union general in crossing the river, having been very severely handled by Pleasonton at Beverly Ford, Aldie, and Upperville, instead of being able to retard General Hooker's advance, was driven himself away from his connection with the army of Lee, and was cut off for a fortnight from all communications with it—a circumstance